NFON & O2 Telefónica hit 100,000 Digital Phone users

NFON and O2 Telefónica Deutschland have passed 100,000 active users of the Digital Phone cloud telephony service across O2 Telefónica Deutschland's business customer base, marking a milestone for their long-running partnership.

The figure reflects adoption of Digital Phone, a cloud-based business telephony product running on NFON's platform. The partners reached the 100,000-user mark by the end of 2025.

Digital Phone can be used via desk phones, mobile devices and web applications. It offers central administration, can be scaled as user numbers change, and can connect with existing IT systems and business processes.

For NFON, the user volume serves as a reference point for its wholesale model, which relies on partners to sell and deliver cloud communications services. O2 Telefónica Deutschland is one of NFON's key wholesale partners in Germany, alongside Deutsche Telekom and 1&1 Versatel.

Shifting customer focus

O2 Telefónica Deutschland has historically served small and medium-sized businesses in the business communications market. The partners said their joint focus is now shifting towards multinational organisations and larger enterprises.

The partnership combines O2 Telefónica Deutschland's sales reach with NFON's experience operating cloud-based communications services. It was positioned as a long-term collaboration that links product development with operational scaling.

The milestone comes as European businesses continue to reassess workplace communications and collaboration tools. Cloud telephony has become a mainstream option for companies seeking a single service for offices and remote workers, along with centralised control of numbering, call routing and user management.

Earlier growth in the partnership largely came from cloud telephony deployments. The next phase will add applications around voice services, with a focus on AI-based functions across NFON's product portfolio.

AI portfolio

NFON groups its AI-based expansion into Business Telephony, Intelligent Assistant and Customer Engagement. Business Telephony remains the underlying telephony layer.

Intelligent Assistant includes automated chat and voice bots designed to handle recurring enquiries.

Customer Engagement covers contact centre products that route enquiries across channels to the right contacts and provide features to support staff handling customer requests.

NFON has framed this strategy under the "NFON Next 2027" banner, linking the programme to commercial changes and a selectively expanded set of AI-based products.

"Our partnership with O2 Telefónica Deutschland stands for stability, scalability and genuine trust established over many years. Together, we enable companies to adopt modern, integrated business communications that flexibly adapt to their requirements and grow with them. It is precisely this combination of technological strength and reliable cooperation that makes our model successful. With NFON Next 2027, we are consistently building on this foundation - with clear commercial structures and a selectively expanded AI-based solution portfolio," said Andreas Wesselmann, Chief Executive Officer, NFON.

Digital Phone is used by companies across several sectors, including industry, retail, logistics and the public sector, according to the partners. The user count indicates significant penetration in a market where many businesses still run mixed environments that combine on-premises telephony with hosted services.

For telecom operators, bundling cloud telephony with connectivity is a common route to deeper customer relationships in the business segment. Such services can increase switching costs and create additional revenues, particularly where a provider can cover multiple sites and mobile users under one contract.

O2 Telefónica Deutschland described Digital Phone as a core element of its business communications portfolio and linked the milestone to the next stage of product expansion.

"The NFON Digital Phone solution forms an integral part of our business communications portfolio. The milestone we have achieved confirms the sustainable success of our partnership and creates a solid foundation for gradually expanding our offering with AIbased applications, thereby generating additional value for our business customers," said Mallik Rao.